<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>BOM : screen</title>

    <script type="text/javascript">

        console.log( '显示器尺寸: ' , screen.width , screen.height );

        console.log( '浏览器最大可用尺寸: ' , screen.availWidth , screen.availHeight );

    </script>

</head>
<body>
    
</body>
</html>